Reducing Arsenic Concentration in Panax notoginseng via Contaminant Immobilization in Soil Using Fe-Ce Oxide
文献类型：期刊论文
| 作者 | Lin, Longyong2,3; Zhong, Lirong1; Yan, Xiulan3 ; Fei, Yang3
|
| 刊名 | JOURNAL OF ENVIRONMENTAL QUALITY
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 47期号:2页码:312-317 |
| ISSN号 | 0047-2425 |
| DOI | 10.2134/jeq2017.07.0297 |
| 通讯作者 | Yan, Xiulan(yanxl@igsnrr.ac.cn) |
| 英文摘要 | Panax notoginseng (Burk.) F.H. Chen, a valuable Chinese medicine, is currently confronted with arsenic (As) contamination in China due to soil pollution. Our previous research demonstrated that Fe(0) and zeolite had a certain inhibitory effect on As accumulation in P. notoginseng. In order to further reduce As accumulation in the plant, a synthetic iron material (Fe-Ce oxide [FC]) with high As adsorption capacity was tested for As remediation. In the study, after FC was applied to the Ascontaminated soil, Panax notoginseng was planted in the soil. The As leaching behavior of the treated soil and As accumulation in P. notoginseng were evaluated. The results showed that FC immobilized As more effectively than Fe(0) and zeolite in soils with high As concentrations. When the FC dosage was 0.5 % (w/w), As concentration of P. notoginseng root (the main medicinal part) decreased by 56%, and root biomass increased by 55%. Results indicated FC could reduce the non-specifically adsorbed As fraction (F1) and specifically adsorbed As fraction (F2) by 22 to 31% and 5 to 17%, respectively, thus reducing the toxicity characteristic leaching procedure leachable As concentration by 41 to 67%. The finding of an iron plaque coating on the plant root and its function as a barrier to As uptake by P. notoginseng is reported here for the first time. The occurrence of iron plaque led to a reduction in As concentration in the phellem and xylemphloem by 66 to 80% and 43 to 70%, respectively. Our findings will help in developing As contamination control in areas where P. notoginseng is planted and set a foundation for a FC-based As immobilization technology. |
| WOS关键词 | IRON ; FRACTIONATION ; ACCUMULATION ; REMEDIATION ; ADSORBENT |
| 资助项目 | National Natural Science Foundation of China[41571309] ; US Department of Energy[DE-AC06-76RLO 1830] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000426851200015 |
| 出版者 | AMER SOC AGRONOMY |
| 资助机构 | National Natural Science Foundation of China ; US Department of Energy |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/57202]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yan, Xiulan |
| 作者单位 | 1.Pacific Northwest Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA 2.Guangdong Prov Acad Environm Sci, Inst Ecoenvironm & Soil Remediat, Guangzhou 510045, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Longyong,Zhong, Lirong,Yan, Xiulan,et al. Reducing Arsenic Concentration in Panax notoginseng via Contaminant Immobilization in Soil Using Fe-Ce Oxide[J]. JOURNAL OF ENVIRONMENTAL QUALITY,2018,47(2):312-317. |
| APA | Lin, Longyong,Zhong, Lirong,Yan, Xiulan,&Fei, Yang.(2018).Reducing Arsenic Concentration in Panax notoginseng via Contaminant Immobilization in Soil Using Fe-Ce Oxide.JOURNAL OF ENVIRONMENTAL QUALITY,47(2),312-317. |
| MLA | Lin, Longyong,et al."Reducing Arsenic Concentration in Panax notoginseng via Contaminant Immobilization in Soil Using Fe-Ce Oxide".JOURNAL OF ENVIRONMENTAL QUALITY 47.2(2018):312-317. |
入库方式： OAI收割
来源：地理科学与资源研究所
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